SOLICITATION NOTICE
A -- Scalable Fault Tolerant Repository (SFTR)
- Notice Date
- 2/25/2009
- Notice Type
- Modification/Amendment
- NAICS
- 541712
— Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)
- Contracting Office
- Department of the Air Force, Air Force Materiel Command, AFRL - Rome Research Site, AFRL/Information Directorate, 26 Electronic Parkway, Rome, New York, 13441-4514
- ZIP Code
- 13441-4514
- Solicitation Number
- BAA-09-06-RIKA
- Point of Contact
- Lynn G. White,, Phone: (315) 330-4996
- E-Mail Address
-
Lynn.White@rl.af.mil
- Small Business Set-Aside
- N/A
- Description
- The purpose of this modification is to: (1) Incorporate additional information for the focus area; (2) Change the FY09 recommended date for white paper submission. (1) The following is added to further clarify the focus area. It will be added to the Funding Opportunity Description paragraph. 1 The work should focus on the utilization of the managed information object (MIO) concept and the development of technologies to assess information across heterogeneous system supporting functional interactions (i.e., retrieval and archiving). Functional requirements should consider the ability to perform ad hoc joins across repositories connected on a tactical network based upon metadata attributes of MIOs in the repositories. Query strategies should consider repositories currently reachable, prevailing network conditions (link availability, latency, bandwidth, etc.), user-defined prioritization, and upper bounds on consumed bandwidth and time-to-first-results. In cases where it is not possible to return all results within these constraints, the system design should consider returning results in a best-effort manner and providing estimates of the quality of results (e.g., platforms responding, percent of MIOs returned and statistics to capture the degree to which the delivered results honor the prioritization function when applied to overall - delivered and non-delivered - result set). Please consider developing methods that would allow for effective management and execution across unreliable networks with high latency and occasional dropouts. When developing a solution, consideration should be given to scaling as the number and size of repositories and query rate increases. The tactical environment comprises moving airborne platforms connected with tactical radios. It is assumed that the links are TCP/IP networks but with widely varying bandwidth and latency characteristics. Bandwidth may vary on a link-by-link basis from 64 kb/s to 2 Mb/s. Latencies may vary from 10 ms to 1 s. When developing a solution, consideration should be given to the feasibility of supporting other airborne networks (i.e., Link-16 or SATL). Because platforms are moving within a potentially hostile environment, link quality and availability may vary over time. While information sharing is a key concept for supporting war-fighting missions using the GIG, current airborne repositories tend to be stove-piped and limit access and do not support efficient "joins" of information with external data. Even when information is available locally, a mission's success could depend on the ability to access or construct higher quality information from multiple repository sources wherever it may reside. The Information Directorate of the Air Force Research Laboratory (AFRL), Rome Research Site, is researching and developing techniques and services for information sharing and management. Information management (IM) is defined as a set of intentional activities to maximize the value of information to support the objectives of the military enterprise. These activities include the capture, dissemination, manipulation, persistence and destruction of information supporting the information lifecycle of the enterprise. Looking at current DOD trends, it's essential that any repository implementation should address a service oriented architecture approach. Realistically, one would expect to encounter multiple distributed heterogeneous repositories with varying latencies, throughput, and disruption characteristics associated with the physically links. A key technical challenge of the repository system is developing the appropriate query mechanisms to support fault tolerance across the multiple repository end points and the complexity of the required semantics. Key factors to consider include the joins and relation queries across repositories whether or not pre-existing relations and indices exist or are available. Knowing that the repository sources are heterogeneous, please consider that the queries syntax and semantics should operate independent of internal representation of metadata, be it XML-based metadata or simple key value pairs. The challenge to query complexity is based on query semantics necessary to compensate for network conditions, any role and management of caching techniques (if used), equality and range expressions, geospatial constraints, or disjunctive predicates on performance and scalability. When developing a solution, it is important to consider that any implementation must be assessed and analyzed to ensure the critical elements achieve their individual objectives against high level functional metrics in terms of scalability and fault tolerance. The system would be assessed for scalability as the number of repositories, queries, and query complexity increase. The distributed aspects would be assessed based on varying latencies, throughput and link quality. (2) Change the date for FY09 white paper submissions to the following: To maximize the possibility of award, white papers must be received by 2pm Eastern time on 5 Mar 09. All other information remains the same.
- Web Link
-
FedBizOpps Complete View
(https://www.fbo.gov/?s=opportunity&mode=form&id=d6b0a27198ccc55c4b0cd5f095ab7878&tab=core&_cview=1)
- Record
- SN01757318-W 20090227/090225221147-d6b0a27198ccc55c4b0cd5f095ab7878 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
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